MacArtney swivels ensuring inter-field Njord communications

NOV subsidiary APL Norway has contracted MacArtney to provide swivels for the Njord field redevelopment in the Norwegian Sea.

Stacked Focal swivel with the LVEOS on top
Stacked Focal swivel with the LVEOS on top

Offshore staff

ESBJERG, Denmark – NOV subsidiary APL Norway has contracted MacArtney to provide swivels for the Njord field redevelopment in the Norwegian Sea.

MacArtney will provide a Moog Focal Low Voltage Electrical Optical Swivel (LVEOS) and a Medium Voltage Electrical Swivel (MVES) for the Equinor-operated project, in 330 m (1,083 ft) water depth.

Both the Njord Bravo FSO and the Njord A semisubmersible steel platform are undergoing life extension works on Norway’s west coast.

The LVEOS has a 420-mm dia. central bore with connections for multiple optical channels, and is capable of data transmission at 1 Gb/s. This combined with hazardous area certification and communication electronics for the vessel and the platform should ensure a safe and reliable communication from end to end through the rotating swivel stack, MacArtney said.

The MVES includes power passes for a 12-kV electrical supply and is designed to interface with the LVEOS, which will be installed above it.

02/22/2019

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